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Cursor OpenChainBench Resource/Ethereum RPC endpoints: free public URLs and private API-key providers …

How to: Cursor OpenChainBench Ethereum RPC endpoints: free public URLs and private API-key providers …

client:Cursor transport:streamable-http resource:Ethereum RPC endpoints: free public URLs and private API-key providers …

Add OpenChainBench to Cursor

  1. 01

    Open ~/.cursor/mcp.json and merge this in. Keep any servers already there.

{
  "mcpServers": {
    "openchainbench": {
      "url": "https://openchainbench.com/api/mcp/mcp"
    }
  }
}
  1. 02

    Save the file and restart Cursor.

  2. 03

    Ethereum RPC endpoints: free public URLs and private API-key providers … is surfaced wherever your client lets you attach context. It is context to attach, not an action to run.

  3. 04

    If it does not appear, check that OpenChainBench is connected and that you are looking at its resources rather than its tools.

Use .cursor/mcp.json in a project root instead to scope it to that project. Cursor merges both. Cursor docs

Same resource, other clients

Read from the server itself, by connecting to it and calling resources/list on 24 September 2026. A listing does not declare its resources, so asking is the only way to know them, and this is what the server actually offers rather than what its listing claims. Names only are stored; connect the server for each resource's type and contents.